小应变下韧性损伤模型的有限元实现
A Finite Element Implementation of a Ductile Damage Model for Small Strains
AI总结：
研究并实现了Lemaitre韧性损伤模型及其简化变体（不含运动硬化），通过有限元计算与文献对比验证模型，发现简化模型具有二次收敛性，而含运动硬化的模型收敛性随损伤恶化。
摘要：
研究了Lemaitre韧性损伤模型及其不含运动硬化的简化变体，并将其实现为计算机代码。为了验证模型，将有限元法的计算结果与文献进行了比较。发现两种实现都模拟了理论预期的行为。简化模型观察到二次收敛水平，而结果表明运动硬化实现的收敛性随损伤恶化。结论是需要进一步检验以验证运动硬化模型的正确实现。
英文摘要：
Lemaitre's ductile damage model and a simplified variant excluding kinematic hardening were studied and implemented into computer code. For purposes of verifying the model, results from computations with the finite element method are compared to literature. It is found that the behavior expected from theory is modeled by both implementations. Quadratic levels of convergence were observed for the simplified model, while results show that convergence of the kinematic hardening implementation deteriorates with damage. It is concluded that further examination is needed to verify the correct implementation of the kinematic hardening model.
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